| Function: | Control And Protection | Installation Location: | Power Plants |
|---|---|---|---|
| Warranty: | 12 Months | OEM: | Yes |
| Package: | Exporting Standard Package | MOQ: | 1set |
| Operation Type: | Electric Or Manual | Life Span: | More Than 15 YEARS |
| Highlight: | ZN23 Air Circuit Breaker,33kv Air Circuit Breaker,40.5kv Air Circuit Breaker |
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1. ZN23-40.5 series 3 phase indoor 33kv 35kv 40.5kv air circuit breaker draw out type
ZN23-40.5 vacuum circuit breaker is rated voltage 40.5kA, three-phase AC 50Hz indoor high-voltage electrical equipment.
Apply to industrial and mining enterprises, substation and transmission and distribution systems for control and protection switching; particularly suitable for metallurgy, electric arc steel-making industries, etc. frequent operation required, as a control and protection equipment.
This product meets the GB 1984-89 “AC High Voltage Circuit Breaker” standard.
2. Parameter of air circuit breaker draw out type
| NO | Item | Units | Technical parameters | |
| 1 | Rated voltage | kV | 40.5 | |
| 2 | Thunder impulse withstand voltage(peak value) | kV | 185 | |
| 3 | lmin industrial frequency withstand voltage | kV | 95 | |
| 4 | Rated frequency | Hz | 50 | |
| 5 | Rated current | A | 1250,1600,2000 | |
| 6 | Rated short-circuit break current | kA | 25 | 31.5 |
| 7 | Rated peak value withstand current | kA | 25 | 31.5 |
| 8 | Rated peak value withstand current | KA | 63 | 80 |
| 9 | Rated short-circuit duration time | s | 4 | |
| 10 | Rated short circuit breaking time | ms | ||
| 11 | Rated short circuit closing current | kA | 80 | |
| 12 | Rated operation order | 0-0.3s-C0-180s-C0 | ||
| 13 | Time of closing brake | ms | 50~85 | |
| 14 | Time of breaking brake | ms | 40~85 | |
| 15 | Rated short-circuit current break and close times | Times | 20 | |
| 16 | Mechanical life-span | Times | 10000 | |
| 17 | Rated dropout current of condenser bank | A | 630 | |
| 18 | Rated power of energy-storage electric machine | W | 275 | |
| 19 | Rated volt of energy-storage motor | V | 25 ± 2 | |
| 20 | Storage time | S | ≤15 | |
| 21 | Closing and opening solenoid rated voltage | V | ≈220,110 | |
| 22 | Loss of pressure tripping device rated voltage | V | ≈220,110 | |
| 23 | Over current tripping device rated current | A | 5 | |
| 24 | Auxiliary switch rated voltage current | A | DC10 | |
3. Working application
Amplitude: earthquake intensity does not exceed 8 °,
Air relative humidity on average less than 95%, on average less than 90%
An ambient air temperature: to +40 °C, the lower limit of -150°C,
Altitude:. ≤ 1000m (For higher altitudes, the rated insulation board level relative increase)
No risk of fire, explosion, serious pollution, chemical corrosion and severe vibration.
4. Technical drawings
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5. Factory
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6. Delivery
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7. FAQ
1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.